NVIDIA Software Engineer Systems interview questions

3 short phone interviews, each within a few days. Then they flew me over for a 6 hour in person interview. This was all one on one with technical staff. Questions were mostly low level implementation/algorithms with a huge focus on performance.

Telephonic, over 1.5 hours. Was interviewed by a systems software engineer for their systems software intern position. Got the call through career fair at university where preliminary screening involved a written technical quiz. Call also consisted of coding challenge.